A-1 Series
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Single Drill, On Grade Unit

Specifications shown are standard. Variations to the standard are available.
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Model A-1-48 A-1-36 A-1-30 A-1-24
Drill Steel Shank .875" x 4.25"
(22.2mm x 107.9mm)		 .875" x 4.25"
(22.2mm x 107.9mm)		 .875" x 3.25"
(22.2mm x 82.6mm)		 .875" x 3.25"
(22.2mm x 82.6mm)
Drill Steel Length 24"(61.0cm)
Under Collar		 12"(30.5cm)
Under Collar		 12"(30.5cm)
Under Collar		 9"(22.9cm)
Under Collar
Drill Bit Diameter .625" to 2.50"
(15.9mm to 63.5mm)		 .625" to 2.50"
(15.9mm to 63.5mm)		 .625" to 1.625 "
(15.9mm to 41.3mm)		 .625" to 1.00 "
(15.9mm to 25.4mm)
*Maximum Drill Depth 18" (45.7cm) 10" (25.4cm) 10" (25.4cm) 7" (17.8cm)
Drill Distance From Top of Slab 3" to 12"
(7.6cm to 30.5cm)		 3" to 12"
(7.6cm to 30.5cm)		 3" to 12"
(7.6cm to 30.5cm)		 3" to 12"
(7.6cm to 30.5cm)
Minimum Cutout Width 48" (121.9cm) 36" (91.4cm) 30" (76.2cm) 24" (61.0cm)
SCFM Required 92.2 (2.61m3/min) 92.2 (2.61m3/min) 75 (2.12m3/min) 36 (1.02m3/min)
PSIG Required 90 (0.62MPa) 90 (0.62MPa) 90 (0.62MPa) 90 (0.62MPa)
Weight 200 lbs. (90.7kg) 185 lbs. (83.9kg) 170 lbs. (77.1kg) 150 lbs. (68.0kg)

*Based on 2 piece steel and bits. Whirlybits should be 1" longer for maximum drilling depth.
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